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Finding the Fourth Proportional to 30,602.10, 45,909.55 and 9,827.70

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Solution

The fourth proportional to 30,602.10, 45,909.55 and 9,827.70 is: 14,743.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.10 : 45,909.55 = 9,827.70 : x
  2. Step 2: Convert to fraction form
    30,602.10/45,909.55 = 9,827.70/x
  3. Step 3: Cross multiply
    30,602.10x = 45,909.55 × 9,827.70
  4. Step 4: Simplify right side
    30,602.10x = 451,185,284.54
  5. Step 5: Solve for x
    x = 451,185,284.54/30,602.10
  6. Step 6: Final answer
    x = 14,743.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.